<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
        <el-row :gutter="20">
            <el-col :span="9">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisble = true">添加用户</el-button>
            </el-col>

            <!-- 用户列表区域 -->
            <el-table :data="userList" border stripe>
                <!-- 索引列 -->
                <el-table-column type="index"></el-table-column>
                <el-table-column
                    prop="username"
                    label="姓名"
                    width="180">
                </el-table-column>
                <el-table-column
                    prop="email"
                    label="邮箱"
                    width="180">
                </el-table-column>
                <el-table-column
                    prop="mobile"
                    label="电话">
                </el-table-column>
                <el-table-column
                    prop="role_name"
                    label="角色">
                </el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <!-- {{scope.row}} -->
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <!-- eslint-disable-next-line -->
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <!-- 删除按钮 -->
                        <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" size="mini"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip :enterable="false" effect="dark" content="分配角色" placement="top">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页功能 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-row>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisble"
        width="50%" @close="addDialogClosed">
        <!-- 内容主题区域 -->
        <el-form :model="addFrom" :rules="addFromRules" ref="addFormRef" label-width="70px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addFrom.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addFrom.password"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addFrom.mobile"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addFrom.email"></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisble = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%" @close="editDialogClosed">
        <el-form ref="editFromRef" :rules="addFromRules" :model="editFrom" label-width="70px">
            <el-form-item label="用户名">
                <el-input v-model="editFrom.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="editFrom.email"></el-input>
            </el-form-item>
            <el-form-item label="手机号"  prop="mobile">
                <el-input v-model="editFrom.mobile"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%" @close="setRoleDialogClose">
        <div>
            <p>当前的用户：{{userInfo.username}}</p>
            <p>当前的角色：{{userInfo.role_name}}</p>
            <p>分配新角色：
                <el-select v-model="sclectedRoleId" placeholder="请选择">
                    <el-option v-for="item in rolesList" :key="item.id"   :label="item.roleName" :value="item.id">
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
    name:'Users',
    data() {
        // 自定义验证邮箱规则
        var checkEmail = (rule,val,cb) => {
            // 验证邮箱正则
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(val)){
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 自定义验证手机号规则
        var checkMobile = (rule,val,cb) => {
            // 验证s手机号正则
            const regMebile = /^(13[0-9]|14[5|7]|15[0|1|2|3|4|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/
            if(regMebile.test(val)){
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }

        return {
            //获取用户列表的参数
            queryInfo:{
                // 搜索框的内容
                query:'',
                // 当前的页数
                pagenum:1,
                // 每页显示的数据条数
                pagesize:2
            },
            // 用户数据
            userList:[],
            // 用户总人数
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisble:false,
            // 添加用户的表单数据
            addFrom:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加表单的验证规则对象  修改用户数据的验证规则对象
            addFromRules:{
                username:[
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                mobile:[
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    {validator: checkMobile, trigger: 'blur'}
                ],
                email:[
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    {validator: checkEmail, trigger: 'blur'}
                ]
            },
            // 控制修改用户对话框的显示与隐藏
            editDialogVisible: false,
            // 修改用户数据的表单数据
            editFrom:{},
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            rolesList:[],
            // 分配角色时已选中的id值
            sclectedRoleId:''
        }
    },
    methods: {
        async getUserList(){
            const {data:res} = await this.$http.get('users',{params:this.queryInfo})
            if(res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
            this.userList=res.data.users
            this.total=res.data.total
            // console.log(res);
        },
        //监听 pagesize 改变的事件
        handleSizeChange(newSize){
            // console.log(newSize);
            this.queryInfo.pagesize=newSize
            this.getUserList()
        },
        // 监听 页码值 改变的事件
        handleCurrentChange(newPage){
            // console.log(newPage);
            this.queryInfo.pagenum=newPage
            this.getUserList()
        },
        // 状态开关监听
        async userStateChange(userInfo) {
            const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
            if (res.meta.status !== 200) {
                userInfo.mg_state=!userInfo.mg_state
                this.$message.error('更新用户数据失败！')
            }
            this.$message.success('更新用户数据成功！')        
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            // 调用 resetFields 方法 关闭表单时可重置表单
            this.$refs.addFormRef.resetFields()
        },
        // 点击确定按钮添加新用户
        addUser(){
            // 预验证
            this.$refs.addFormRef.validate(async valid=>{
                // console.log(valid);
                if(!valid) return 
                // 可以发起添加用户的网络请求
                const {data:res} = await this.$http.post('users',this.addFrom)
                // console.log(res);
                if(res.meta.status!==201){
                    return this.$message.error('添加用户失败！')
                }
                this.$message.success('添加用户成功！')
                // 隐藏添加用户的对话框
                this.addDialogVisble = false
                //重新获取用户的列表
                this.getUserList()
            })
        },
        // 修改用户按钮功能 展示编辑用户对话框
        async showEditDialog(id){
            const {data:res} = await this.$http.get('users/'+ id)
            // console.log(res);
            if(res.meta.status!==200){
                return this.$message.error('用户数据获取失败！')
            }
            this.editFrom=res.data
            // console.log(this.editFrom);
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed(){
            // 调用 resetFields 方法 关闭表单时可重置表单
            this.$refs.editFromRef.resetFields()
        },
        // 点击确定按钮修改用户数据功能
        editUserInfo() {
        this.$refs.editFromRef.validate(async valid => {
            // console.log(valid)
            if (!valid) return
            // 发起修改用户信息的数据请求
            const { data: res } = await this.$http.put('users/' + this.editFrom.id, {
                email: this.editFrom.email,
                mobile: this.editFrom.mobile
            })
            // console.log(res);
            if (res.meta.status !== 200) {
                this.$message.error('更新用户信息失败!')
            }
            //关闭对话框
            this.editDialogVisible = false
            // 刷新数据列表
            this.getUserList()
            this.$message.success('更新用户信息成功!')
        })
        },
        //根据ID删除
        async removeUserById(id){
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'}).catch(err => err)
            //如果确认删除 则返回 字符串 confirm
            //如果取消删除 则返回 字符串 cancel
            if(confirmResult !== 'confirm') return this.$message.info('已取消删除')
            // this.$http.delete('users/'+id).then(res => {
            //     const {data: response} =res
            //     // console.log(response);     
            //     if(response.meta.status !== 200) return this.$message.error('用户删除失败')
            //     this.$message.success('删除成功')
            //     this.getUserList()
            // })
            const {data: res} = await this.$http.delete('users/'+id)
            // console.log(res);
            if(res.meta.status !== 200) return this.$message.error('用户删除失败')
            this.$message.success('删除用户成功')
            this.getUserList()
        },
        // 点击分配角色按钮获取所有角色列表
        async setRole(role){
            this.userInfo = role
            // 获取所有角色列表
            const {data: res} = await this.$http.get('roles')
            // console.log(res);
            if(res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        // 点击确定按钮分配角色
        async saveRoleInfo(){
            if(!this.sclectedRoleId) return this.$message.error('请选择要分配的角色！')
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid: this.sclectedRoleId})
            if(res.meta.status !== 200) return this.$message.error('分配角色失败！')
            this.$message.success('分配角色成功！')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClose(){
            this.sclectedRoleId = ''
            this.userInfo = ''
        }
    },


    created() {
        this.getUserList()
    },
}
</script>

<style scoped>

</style>